Century Aluminum (NASDAQ: CENX) saw its stock price plummet 6.76% in after-hours trading on Wednesday, following the release of its first-quarter 2025 earnings report. The significant drop comes despite the company reporting year-over-year growth in both earnings and revenue, suggesting that the results fell short of market expectations.

According to the company's Q1 2025 earnings report, Century Aluminum posted adjusted earnings per share (EPS) of $0.36, which missed the analyst consensus estimate of $0.56 by 35.71%. This disappointing figure overshadowed the fact that it represented a substantial improvement from the $0.03 loss per share reported in the same period last year. On a more positive note, the company reported quarterly sales of $633.90 million, beating the analyst consensus estimate of $577.60 million by 9.75% and marking a 29.50% increase over sales of $489.50 million in the same period last year.

Despite the mixed results, Century Aluminum's overall financial performance showed signs of improvement. The company reported a net income of $29.7 million for the quarter, with an adjusted EBITDA of $78 million. However, the market's negative reaction indicates that investors may have been anticipating even stronger results or are concerned about other factors affecting the company's outlook. The aluminum industry's sensitivity to global economic conditions and commodity prices could be influencing investor sentiment, overshadowing the seemingly solid quarterly performance and revenue growth.